"On my birthday" is a fantasy novel by the famous Ukrainian writer Sofya Zenovievna. The book tells about the mysterious world of the future, where every person has the opportunity to go on a journey to his past on the day of his birth. The main character, Kateryna, decides to take advantage of this unique opportunity, but her journey turns out to be not at all what she expected. Together with her, readers discover the secrets of the past that affect the present and the future. "On your birthday" is a fascinating story about time, memory, choices and love that will leave you thinking and will touch you to the core.